CA1243393A - Systeme d'imagerie utilisant un dispositif eclairant de facon uniforme les objets balayes - Google Patents

Systeme d'imagerie utilisant un dispositif eclairant de facon uniforme les objets balayes

Info

Publication number
CA1243393A
CA1243393A CA000533403A CA533403A CA1243393A CA 1243393 A CA1243393 A CA 1243393A CA 000533403 A CA000533403 A CA 000533403A CA 533403 A CA533403 A CA 533403A CA 1243393 A CA1243393 A CA 1243393A
Authority
CA
Canada
Prior art keywords
elliptical cylindrical
line
scanning
scanning plane
focal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000533403A
Other languages
English (en)
Inventor
Tuan-Kay Lim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR Voyix Corp
Original Assignee
NCR Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of CA1243393A publication Critical patent/CA1243393A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
    • H04N1/0286—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array in combination with a light integrating, concentrating or defusing cavity
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02885—Means for compensating spatially uneven illumination, e.g. an aperture arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
CA000533403A 1986-10-09 1987-03-31 Systeme d'imagerie utilisant un dispositif eclairant de facon uniforme les objets balayes Expired CA1243393A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/917,332 US4712002A (en) 1986-10-09 1986-10-09 Imaging systems employing apparatus for evenly illuminating objects to be scanned
US917,332 1986-10-09

Publications (1)

Publication Number Publication Date
CA1243393A true CA1243393A (fr) 1988-10-18

Family

ID=25438639

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000533403A Expired CA1243393A (fr) 1986-10-09 1987-03-31 Systeme d'imagerie utilisant un dispositif eclairant de facon uniforme les objets balayes

Country Status (2)

Country Link
US (1) US4712002A (fr)
CA (1) CA1243393A (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473865A (en) * 1979-11-09 1984-09-25 Savin Corporation Stationary light source electrophotographic copier
US4506152A (en) * 1982-07-12 1985-03-19 Ncr Canada Ltd. - Ncr Canada Ltee Illumination system
JPS59100430A (ja) * 1982-11-30 1984-06-09 Minolta Camera Co Ltd 複写機の原稿照明用反射鏡

Also Published As

Publication number Publication date
US4712002A (en) 1987-12-08

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Legal Events

Date Code Title Description
MKEX Expiry